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<head><meta charset="utf-8"><title>2021 - New prelude · t-libs · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/index.html">t-libs</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/2021.20-.20New.20prelude.html">2021 - New prelude</a></h3>

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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/2021%20-%20New%20prelude/near/225083874" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Mara <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/2021.20-.20New.20prelude.html#225083874">(Feb 03 2021 at 21:19)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="2645">@T-libs</span> The deadline for 2021 edition changes is getting close. We should start finishing up the plans for a new prelude. Does anyone feel like collecting the proposed additions and writing the RFC?</p>
<p>See also <a href="https://github.com/rust-lang/rust/issues/65512">https://github.com/rust-lang/rust/issues/65512</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/2021%20-%20New%20prelude/near/225084432" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> bstrie <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/2021.20-.20New.20prelude.html#225084432">(Feb 03 2021 at 21:23)</a>:</h4>
<p>what's the deadline?</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/2021%20-%20New%20prelude/near/225084612" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Simon Sapin <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/2021.20-.20New.20prelude.html#225084612">(Feb 03 2021 at 21:25)</a>:</h4>
<p>I’m a bit worried about the requirement of warning for code that would break in the next edition. For trait method resolution becoming ambiguous with additional traits in the prelude, implementing that lint sounds non-trivial and I’m not aware of any progress since 2018</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/219381-t-libs/topic/2021%20-%20New%20prelude/near/225084682" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Mara <a href="https://rust-lang.github.io/zulip_archive/stream/219381-t-libs/topic/2021.20-.20New.20prelude.html#225084682">(Feb 03 2021 at 21:25)</a>:</h4>
<p>last thing we discussed was 15 february for an accepted rfc. but i'm not sure if that's still correct.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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